JPH03217158A - Private branch exchange call forwarding method - Google Patents

Abstract

PURPOSE:To transfer calls at night or on a holiday to the same transfer destination at a time with each tenant as a unit by assigning each of plural tenants is one system to an unique conversion pattern and setting the absence transfer destination with each tenant as the unit. CONSTITUTION:At the time of a direct dialing call from an outside line 1 to a direct dialing trunk 2, a main controller 4 checks contents of a data memory 5 and sends the direct dialing call to a corresponding absence transfer destination telephone set 7. Plural patterns are set as contents of the memory, and the pattern to be used is set on demand to transfer direct dialing calls for each tenant or group at night or on a holiday to the absence transfer destination telephone set and are properly received with a tape or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electronic private branch exchange, and more particularly to a service function of the electronic private branch exchange, which is a call forwarding method when an incoming call is received from an extension line or a dial-in call is received from an outside line.

BACKGROUND OF THE INVENTION In recent years, electronic exchanges have developed significantly, and as a result, it has become possible to provide a variety of new services. Call forwarding is one of these, but in the past, when performing call forwarding when an external dial-in call or an extension call was received, it was only possible to set and register the call forwarding destination for each corresponding extension phone for each called number. .

Problems to be Solved by the Invention However, with the above conventional method, each telephone extension must be aware of the incoming call and set the call forwarding destination, which is troublesome and prone to mistakes. .

In addition, in the method of converting the dial signal sent from an outside line by setting a conversion pattern and determining the extension number,
If you try to apply the conventional call forwarding method, you will not be able to set a call forwarding destination that supports this conversion pattern.
It is not possible to set the same forwarding destination in one pattern, and 1
There was also the problem that each extension telephone within the pattern had to set and release the same call forwarding destination.

It is an object of the present invention to provide a new method for solving these conventional problems.

Means for Solving the Problems In order to achieve the above object, the present invention provides a private electronic branch exchange having a main controller and a main memory (data memory), in which external dial-in incoming signals or external dial-in incoming signals are stored in the main memory. A memory section is provided that can register a call forwarding destination extension number corresponding to an incoming extension call, or register a call forwarding destination extension number corresponding to a conversion pattern by setting a conversion pattern for a dial-in incoming call number. When a call is received to a registered called number or a called number corresponding to a conversion pattern in which a call forwarding destination is registered, the main controller checks the memory status of the memory section corresponding to the call forwarding destination extension. This is a method that allows calls to be dialed in or received by the extension if the call forwarding destination extension is unregistered or busy.

Effects of the present invention By using the above-mentioned means, when a dial-in call is received or an extension call is received, the present invention transfers a missed call in a single operation according to the conversion pattern without having to set the call forwarding destination by special number from each telephone. The destination can be set or canceled.

For this reason, one system is divided into multiple tenants.
By assigning each tenant to a different conversion pattern, you can set call forwarding destinations for each tenant. For example, you can forward calls to the same forwarding destination all at once for certain tenants, especially at night and on holidays, to notify them of your absence. I can do it.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, a call path switch 3 is connected to an outside line 1 through a dial-in trunk 2 on the one hand, and a data memory 5 which is a main storage section through a main controller 4 on the other hand.
It is connected to the. An extension telephone set 6 for dial-in incoming calls and an extension telephone set 7 for call forwarding destinations for dial-in incoming calls are also connected to the call path switch 3.

In FIG. 3, in the internal area of the data memory 5, the memory contents of pattern 1 as an example are the first 8 dial-in reception numbers, the last 9 reception numbers, and the first 10 corresponding extension numbers corresponding to the first 8 reception numbers. , and are accommodated in the order of corresponding missed forwarding destination numbers 11 corresponding to the first 8 of the received numbers to the last 9 of the received numbers, and the fourth
In the case of an extension call, the contents of the memory of pattern a are stored in the order of extension number first 12, extension number last 13, and corresponding missed transfer destination number 14.

In another area of the data memory 5 in FIG.
This state indicates whether the call is set as a call forwarding destination, busy (busy), or idle (not in use).

Next, the operation of the embodiment of the present invention described above will be explained.
When an incoming call is received, the main control device 4 checks the data memory 5, and in FIG. 3, if the incoming call arrives at the receiving number first 8, it checks the corresponding extension number first 10 and the corresponding corresponding missed forwarding destination number 11. If the corresponding call forwarding number 11 is set, next check the status of the call forwarding destination extension 6 shown in Figure 5 and find out that it is not set as the forwarding destination or is not busy. For example, as shown in FIG. 2, the corresponding call transfer destination telephone 7 is dialed in to receive the call.

If the incoming trunk is not the first 8 in the reception number, and the range is up to the last 9 in the reception number, the call will be forwarded to the corresponding absentee forwarding destination number 11 in the same way.

By setting multiple memory content patterns as described above, and setting which pattern to use as needed, you can make missed dial-in calls made at night or on holidays for each tenant or group. The information is transferred to the destination telephone, where it can be handled with tape, etc. as appropriate.

As a method for registering the forwarding destination when a dial-in call is received, the system operator may register the forwarding destination extension number directly in the memory section.
When one device registers the dial-in call forwarding destination number in the data memory 5 via the main controller 4 using a special number,
All dial-in calls received on all extensions belonging to that pattern can be forwarded.

The above explanation has been about incoming dial-in calls, but when it comes to incoming calls from other groups or tenants, the main controller checks the contents of the extension number memory in Figure 4, First 12
If you find a corresponding extension number between and the final extension number 13,
It is possible to discover the corresponding missed transfer destination number 14 and transfer thereto.

Effects of the Invention As is clear from the above embodiments, the present invention is a method for registering a call forwarding destination, which eliminates the trouble of setting a call forwarding destination for each extension telephone considering dial-in calls or extension calls. After the system operator registers the forwarding destination extension number directly in the data memory section 5, the call forwarding destination may be set by dialing a special number from one of the extension telephones in that pattern. When one of the telephone extensions in a pattern registers the incoming call forwarding destination number in the data memory unit 5 via the main controller 48 using the special number, dial-in calls received on all telephone extensions belonging to that pattern are Alternatively, all incoming extension calls can be forwarded in an extremely easy way, contributing to the streamlining of business operations.

Therefore, we have developed an effective method that allows each tenant or group to respond to dial-in calls made at night, on holidays, etc., and to respond to extension calls received from other tenants or groups using automatic response devices as appropriate for each tenant or group. This is what we provide.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an electronic private branch exchange according to an embodiment of the present invention, FIG. 2 is a block diagram of a state in which calls are forwarded by dial-in number from the state shown in FIG. 1, and FIG. Figure 4 is a diagram showing the structure of the storage memory for the extension number storage location for call forwarding destinations by dial-in incoming call number or conversion pattern in the main memory of an electronic exchange. Alternatively, FIG. 5 is a diagram illustrating the configuration of a storage memory for the absent transfer destination extension number accommodation location for each conversion pattern, and FIG. 5 is a diagram showing the memory configuration of the status of the transfer destination extension in the main storage section. 1... External line, 2... Dial-in incoming trunk, 3... Call path switch, 4...
...Main controller, 5...Main memory section, 6...
・・・Extension telephone that supports dial-in incoming calls, 7...
・Dial-in call forwarding destination extension telephone by number,
8...First received number, 9...Last received number, 10...First corresponding extension number, 11...
...Corresponding call forwarding number, 12...First extension number, 13...Last extension number 13, 14...
...Corresponding call forwarding destination number, 15...Status of the call forwarding destination extension.

Claims (3)

[Claims] (1) comprising a main control device, a communication path switch controlled by the main control device, and a main storage section controlled by the main control device, and the main storage section is provided with a patterned memory area; In one pattern, the first extension number, the last extension number, and the corresponding call forwarding number are stored. When an extension call is received, the main controller checks the memory area and matches the incoming extension number with the first extension number and the extension number. A call forwarding method in which a private branch exchange is configured to find a corresponding call forwarding number in a pattern between the end of a number and then configure the call to arrive at that extension. (2) In one pattern of the patterned memory area of the main storage section, the first external dial-in reception number, the last reception number, the first corresponding extension number, and the corresponding missed call forwarding destination number are stored, and dial-in calls are received. 2. The main controller is configured to find a corresponding missed forwarding destination number from the beginning of the corresponding extension number in the pattern between the beginning of the number and the end of the received number, and to receive the call on that extension. Private branch exchange call forwarding method. (3) The call forwarding method for a private branch exchange according to claim 1 or 2, wherein registration and cancellation of the corresponding call forwarding destination number can be performed by operation using a special number from any extension telephone within the pattern.